The Third Comeback

Mel Gibson is joining "The Hangover 2" in a cameo ala Tom Cruise in "Tropic Thunder" or Mike Tyson in The Hangover says Page Six.

The story follows the guys (Zach Galifianakis, Bradley Cooper, Ed Helms, and Justin Bartha) who head out on a trip to Thailand with a dangerous stop in Bangkok where they encounter Gibson's character.

A source says "It's a done deal. Mel will make a cameo as a tattoo artist. Filming is taking place on the Warner Bros. lot, where a Bangkok set has been built, and Mel is expected to film his role in two weeks. Then the production moves to Thailand at the end of October."

Much like Tyson in the first film it's hoped the role will help repair the image of the troubled star.

Not really a Gibby fan anymore folks....